Notes&colon;1&period; The melting point of Nickel is 1455C&period; Nickel have strong alkali resistance and anti-corossion&period; So the nickel crucible usually is used to melt Fe alloy&comma; slag&comma; clay&comma; fire resistance material&period;

2&period; The melting temp of Nickel crucible can not surpass 700C&comma; Under high temperature&comma; the nickel is easy to be oxdisized&period;

3&period; Nickel crucible can not be used for the ignition of the precipitate and not for melting KHSO&comma; NaHS04&comma; K2S2O&comma; Na2S2O7&comma; Borax